The average credit card interest rate has climbed past 21%, and for store-brand cards it's often closer to 30%.
If you're carrying a balance, you already know the sting.
What's worth asking is why this number keeps drifting up even when the Federal Reserve has been holding or cutting its benchmark rate.
The short answer: your APR isn't tied to the Fed the way most people assume.
It's usually pegged to the prime rate plus a margin the bank sets.
When the Fed moves, prime moves, and your rate follows within a billing cycle or two.
But when the Fed pauses, that margin doesn't shrink back.
Credit card interest income at the big banks runs into the tens of billions annually.
But there's a subtler winner: the rewards economy.
Those 2% cash-back cards and airport lounge perks have to be funded somewhere, and a meaningful chunk comes from the interest paid by people who carry balances.
If you pay in full every month, you're effectively subsidized by the folks who don't.
Roughly half of cardholders carry a balance at least some of the time, according to industry surveys.
That means the rewards are partly a transfer from the financially stretched to the financially comfortable.
It's not a conspiracy—it's just how the math shakes out when a single product serves two very different customers.
First, check your statement for the APR on purchases and the APR on cash advances.
They're often wildly different, and cash advance rates can exceed 29% with no grace period.
Second, if you have decent credit, call and ask for a rate reduction.
It works more often than people expect, especially if you mention a competing offer.
Third, consider a 0% balance transfer card—but read the fee, usually 3% to 5% of the amount moved, and the promo period, often 15 to 21 months.
A balance transfer only helps if you actually pay down the balance during the promo window.
Otherwise you've just paid a fee to move debt from one account to another, and when the promo ends, the rate can jump higher than what you left.
The discounts at checkout are real, but the APRs are frequently the highest in the market.
If you won't pay it off immediately, the 10% off your purchase can cost far more than it saves.
The bigger picture is that the APR you see advertised is often a range, not a promise. "0% intro APR" comes with a date. "Rates as low as" comes with a credit check.
The number that lands on your account depends on your credit profile, and it's set by a bank that has every incentive to keep it high. **The takeaway:** A high average APR isn't a glitch—it's a business model, and the rewards you enjoy are partly funded by the interest someone else is paying.
Final Thoughts
Know which side of that equation you're on, and treat every "low intro rate" as a deadline, not a gift.